标题: | A variable step-size sign algorithm for channel estimation |
作者: | Li, Yuan-Ping Lee, Ta-Sung Wu, Bing-Fei 电机资讯学士班 Undergraduate Honors Program of Electrical Engineering and Computer Science |
关键字: | Adaptive filters;Channel estimation;Impulsive noise;Least mean square;Sign algorithm;System identification |
公开日期: | 1-九月-2014 |
摘要: | This paper proposes a new variable step-size sign algorithm (VSSA) for unknown channel estimation or system identification, and applies this algorithm to an environment containing two-component Gaussian mixture observation noise. The step size is adjusted using the gradient-based weighted average of the sign algorithm. The proposed scheme exhibits a fast convergence rate and low misadjustment error, and provides robustness in environments with heavy-tailed impulsive interference. (C) 2014 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.sigpro.2014.03.030 http://hdl.handle.net/11536/24603 |
ISSN: | 0165-1684 |
DOI: | 10.1016/j.sigpro.2014.03.030 |
期刊: | SIGNAL PROCESSING |
Volume: | 102 |
Issue: | |
起始页: | 304 |
结束页: | 312 |
显示于类别: | Articles |
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